To the Editor.—Two related points were not, in my opinion, adequately dealt with in the report by Greenberg et al (221:261,1972) and the EDITORIAL by DeVita (221:298, 1972) on the treatment of Hodgkin's disease. Is it appropriate to identify as "private practitioners" a group of specialists in hematology and oncology who are prepared to conduct, tabulate, and report the results of their clinical trials, but who happen to run their own offices? Their situation would seem to have little relevance to that of the general physician or internist who has neither the training and experience to optimally manage this disease, nor sufficient perspective about the problem to recognize the pressing questions, nor enough time to keep careful records and report his results. Clearly, the questions posed by Dr. DeVita need to be answered as soon as possible. But what should be the role of the trained specialist outside the